The prime factors of 840 are: 2, 3, 5, 7.
2 x 2 x 2 x 3 x 5 x 7 = 840
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
840 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 32 factors of 840 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, and 840.The proper factors of 840 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, and 420 or,if the definition you are using excludes 1, they are 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, and 420.The prime factors of 840 are 2, 2, 2, 3, 5, and 7. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The 4 distinct prime factors (listing each prime factor only once) of 840 are 2, 3, 5, and 7.The prime factorization of 840 is 2 x 2 x 2 x 3 x 5 x 7 or, in index form (in other words, using exponents), 23 x 3 x 5 x 7.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
All the prime factors of 76 are 2 and 19.
All numbers have factors. Some factors are prime numbers. These are known as prime factors.
There are infinitely many prime factors.
You will know because all of the numbers are prime.