To find all the divisors of the number 3,607,140:
- 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 3,607,140:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,607,140 = 22 × 3 × 5 × 79 × 761
3,607,140 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 = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,607,140
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 2 × 3 × 5 =
30
composite factor = 2
2 × 3 × 5 =
60
prime factor =
79
composite factor = 2 × 79 =
158
composite factor = 3 × 79 =
237
composite factor = 2
2 × 79 =
316
composite factor = 5 × 79 =
395
composite factor = 2 × 3 × 79 =
474
prime factor =
761
composite factor = 2 × 5 × 79 =
790
composite factor = 2
2 × 3 × 79 =
948
composite factor = 3 × 5 × 79 =
1,185
composite factor = 2 × 761 =
1,522
composite factor = 2
2 × 5 × 79 =
1,580
This list continues below...
... This list continues from above
composite factor = 3 × 761 =
2,283
composite factor = 2 × 3 × 5 × 79 =
2,370
composite factor = 2
2 × 761 =
3,044
composite factor = 5 × 761 =
3,805
composite factor = 2 × 3 × 761 =
4,566
composite factor = 2
2 × 3 × 5 × 79 =
4,740
composite factor = 2 × 5 × 761 =
7,610
composite factor = 2
2 × 3 × 761 =
9,132
composite factor = 3 × 5 × 761 =
11,415
composite factor = 2
2 × 5 × 761 =
15,220
composite factor = 2 × 3 × 5 × 761 =
22,830
composite factor = 2
2 × 3 × 5 × 761 =
45,660
composite factor = 79 × 761 =
60,119
composite factor = 2 × 79 × 761 =
120,238
composite factor = 3 × 79 × 761 =
180,357
composite factor = 2
2 × 79 × 761 =
240,476
composite factor = 5 × 79 × 761 =
300,595
composite factor = 2 × 3 × 79 × 761 =
360,714
composite factor = 2 × 5 × 79 × 761 =
601,190
composite factor = 2
2 × 3 × 79 × 761 =
721,428
composite factor = 3 × 5 × 79 × 761 =
901,785
composite factor = 2
2 × 5 × 79 × 761 =
1,202,380
composite factor = 2 × 3 × 5 × 79 × 761 =
1,803,570
composite factor = 2
2 × 3 × 5 × 79 × 761 =
3,607,140
48 factors (divisors)
What times what is 3,607,140?
What number multiplied by what number equals 3,607,140?
All the combinations of any two natural numbers whose product equals 3,607,140.
1 × 3,607,140 = 3,607,140
2 × 1,803,570 = 3,607,140
3 × 1,202,380 = 3,607,140
4 × 901,785 = 3,607,140
5 × 721,428 = 3,607,140
6 × 601,190 = 3,607,140
10 × 360,714 = 3,607,140
12 × 300,595 = 3,607,140
15 × 240,476 = 3,607,140
20 × 180,357 = 3,607,140
30 × 120,238 = 3,607,140
60 × 60,119 = 3,607,140
79 × 45,660 = 3,607,140
158 × 22,830 = 3,607,140
237 × 15,220 = 3,607,140
316 × 11,415 = 3,607,140
395 × 9,132 = 3,607,140
474 × 7,610 = 3,607,140
761 × 4,740 = 3,607,140
790 × 4,566 = 3,607,140
948 × 3,805 = 3,607,140
1,185 × 3,044 = 3,607,140
1,522 × 2,370 = 3,607,140
1,580 × 2,283 = 3,607,140
24 unique multiplications The final answer:
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