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70 is the fourth discrete sphenic number, as the first of the form . [1] It is the smallest weird number, a natural number that is abundant but not semiperfect, [2] where it is also the second-smallest primitive abundant number, after 20. 70 is in equivalence with the sum between the smallest number that is the sum of two abundant numbers, and the largest that is not (24, 46).
The same prime factor may occur more than once; this example has two copies of the prime factor When a prime occurs multiple times, exponentiation can be used to group together multiple copies of the same prime number: for example, in the second way of writing the product above, 5 2 {\displaystyle 5^{2}} denotes the square or second power of ...
For example, take n = 71. Then n − 1 = 70 and the prime factors of 70 are 2, 5 and 7.We randomly select an a=17 < n.Now we compute: (). For all integers a it is known that
m is a divisor of n (also called m divides n, or n is divisible by m) if all prime factors of m have at least the same multiplicity in n. The divisors of n are all products of some or all prime factors of n (including the empty product 1 of no prime factors). The number of divisors can be computed by increasing all multiplicities by 1 and then ...
The number of sigma factors varies between bacterial species. [1] [6] E. coli has seven sigma factors. Sigma factors are distinguished by their characteristic molecular weights. For example, σ 70 is the sigma factor with a molecular weight of 70 kDa.
The study analyzed data on more than 700 participants aged 70 or older. Those who took omega-3 and vitamin D supplements regularly over three years appeared to have a slower rate of biological aging.
Average 30-year fixed mortgage rates are now at 6.70% as of Wednesday, March 5, 2025, tumbling alongside growing concerns about the economy, including the effects of the Trump administration's ...
70 1.197 857 167 × 10 100: 100 9.332 621 ... The "factors" that this name refers to are the terms of the product formula for the factorial. [20] Definition