Q: What are the prime factors of the number 67,402,776?

 A: 2, 3, 7, 151, 2657

Why are those the prime factors of the number 67,402,776?

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 67,402,776

67,402,776
Factor Arrows
233,701,388
Factor Arrows
216,850,694
Factor Arrows
28,425,347
Factor Arrows
32,808,449
Factor Arrows
7401,207
Factor Arrows
1512,657

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, 7, 151, 2657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 151 x 2,657 = 67,402,776

This can also be written as 23 x 31 x 71 x 1511 x 2,6571 = 67,402,776

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


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