18.Dec.21

Any whole number is either odd or even. An even number is commonly defined as any number that ends in 0, 2, 4, 6, or 8.

We also know that if a number is even, it must be divisible by 2 -- that is to say, it contains a factor of 2.

What's more, if a number ends in 0, it contains a factor of 10, and a factor of 10 contains a factor of 5 and a factor of 2.

74,000,000 has six zeroes at the end of it, meaning it has six factors of 10 -- and thus, six factors of 5.

74 contains one factor of 2 and one factor of 37.

37 × 5⁶

We could leave it in this form, but if we go ahead and calculate it, we get 578,125