The longest factor string for 840 is its prime factorization because prime factors can't be broken down any further.
Find one factor, divide by it to get the other factor. Continue separating each of the factors into smaller factors, until you only have prime numbers. For example, 840 = 2 x 420. Now continue finding smaller factors for 420.
2 x 420 3 x 280 4 x 210 5 x 168 6 x 140
Prime factors of 21 are: 3 and 7 Prime factors of 40 are: 23 and 5 LCM = 23*3*5*7 = 840
All the prime factors of 76 are 2 and 19.
The prime factors are: 2,3,5,7
The longest factor string for 840 is its prime factorization because prime factors can't be broken down any further.
Find one factor, divide by it to get the other factor. Continue separating each of the factors into smaller factors, until you only have prime numbers. For example, 840 = 2 x 420. Now continue finding smaller factors for 420.
840=420*2=210*2*2=105*2*2*2=21*5*2*2*2=7*3*5*2*2*2So, the prime factors are 2,3,5, and 7
2 x 420 3 x 280 4 x 210 5 x 168 6 x 140
Prime factors of 21 are: 3 and 7 Prime factors of 40 are: 23 and 5 LCM = 23*3*5*7 = 840
The prime factors are 2x2x2x13 All factors are 1,104,2,52,4,26,8,13
Well, isn't that a happy little question! Let's take a look at 840. Its factors are numbers that can be multiplied together to give 840, like 1, 2, 3, 4, and so on. The prime factors are the factors that are also prime numbers, like 2, 3, 5, and 7. Just like painting a beautiful landscape, understanding factors can help us see the beauty in numbers!
All the prime factors of 76 are 2 and 19.
You will know because all of the numbers are prime.
All numbers have factors. Some factors are prime numbers. These are known as prime factors.
There are infinitely many prime factors.