Q: What are the prime factors of the number 76,451,472?

 A: 2, 3, 37, 4783

Why are those the prime factors of the number 76,451,472?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 76,451,472

76,451,472
Factor Arrows
238,225,736
Factor Arrows
219,112,868
Factor Arrows
29,556,434
Factor Arrows
24,778,217
Factor Arrows
31,592,739
Factor Arrows
3530,913
Factor Arrows
3176,971
Factor Arrows
374,783

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 37, 4783

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 37 x 4,783 = 76,451,472

This can also be written as 24 x 33 x 371 x 4,7831 = 76,451,472

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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