To find all the divisors of the number 3,290,550:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 3,290,550:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,290,550 = 2 × 3 × 52 × 21,937
3,290,550 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (1 + 1) × (2 + 1) × (1 + 1) = 2 × 2 × 3 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,290,550
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 5
2 =
25
composite factor = 2 × 3 × 5 =
30
composite factor = 2 × 5
2 =
50
composite factor = 3 × 5
2 =
75
composite factor = 2 × 3 × 5
2 =
150
This list continues below...
... This list continues from above
prime factor =
21,937
composite factor = 2 × 21,937 =
43,874
composite factor = 3 × 21,937 =
65,811
composite factor = 5 × 21,937 =
109,685
composite factor = 2 × 3 × 21,937 =
131,622
composite factor = 2 × 5 × 21,937 =
219,370
composite factor = 3 × 5 × 21,937 =
329,055
composite factor = 5
2 × 21,937 =
548,425
composite factor = 2 × 3 × 5 × 21,937 =
658,110
composite factor = 2 × 5
2 × 21,937 =
1,096,850
composite factor = 3 × 5
2 × 21,937 =
1,645,275
composite factor = 2 × 3 × 5
2 × 21,937 =
3,290,550
24 factors (divisors)
What times what is 3,290,550?
What number multiplied by what number equals 3,290,550?
All the combinations of any two natural numbers whose product equals 3,290,550.
1 × 3,290,550 = 3,290,550
2 × 1,645,275 = 3,290,550
3 × 1,096,850 = 3,290,550
5 × 658,110 = 3,290,550
6 × 548,425 = 3,290,550
10 × 329,055 = 3,290,550
15 × 219,370 = 3,290,550
25 × 131,622 = 3,290,550
30 × 109,685 = 3,290,550
50 × 65,811 = 3,290,550
75 × 43,874 = 3,290,550
150 × 21,937 = 3,290,550
12 unique multiplications The final answer:
(scroll down)