Q: What are the prime factors of the number 1,419,880?

 A: 2, 5, 7, 11, 461

Why are those the prime factors of the number 1,419,880?

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 1,419,880

1,419,880
Factor Arrows
2709,940
Factor Arrows
2354,970
Factor Arrows
2177,485
Factor Arrows
535,497
Factor Arrows
75,071
Factor Arrows
11461

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, 5, 7, 11, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 11 x 461 = 1,419,880

This can also be written as 23 x 51 x 71 x 111 x 4611 = 1,419,880

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


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