To find all the divisors of the number 377,406:
- 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 377,406:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
377,406 = 2 × 33 × 29 × 241
377,406 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) × (3 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 377,406
- 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 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
prime factor =
29
composite factor = 2 × 3
3 =
54
composite factor = 2 × 29 =
58
composite factor = 3 × 29 =
87
composite factor = 2 × 3 × 29 =
174
prime factor =
241
composite factor = 3
2 × 29 =
261
composite factor = 2 × 241 =
482
composite factor = 2 × 3
2 × 29 =
522
This list continues below...
... This list continues from above
composite factor = 3 × 241 =
723
composite factor = 3
3 × 29 =
783
composite factor = 2 × 3 × 241 =
1,446
composite factor = 2 × 3
3 × 29 =
1,566
composite factor = 3
2 × 241 =
2,169
composite factor = 2 × 3
2 × 241 =
4,338
composite factor = 3
3 × 241 =
6,507
composite factor = 29 × 241 =
6,989
composite factor = 2 × 3
3 × 241 =
13,014
composite factor = 2 × 29 × 241 =
13,978
composite factor = 3 × 29 × 241 =
20,967
composite factor = 2 × 3 × 29 × 241 =
41,934
composite factor = 3
2 × 29 × 241 =
62,901
composite factor = 2 × 3
2 × 29 × 241 =
125,802
composite factor = 3
3 × 29 × 241 =
188,703
composite factor = 2 × 3
3 × 29 × 241 =
377,406
32 factors (divisors)
What times what is 377,406?
What number multiplied by what number equals 377,406?
All the combinations of any two natural numbers whose product equals 377,406.
1 × 377,406 = 377,406
2 × 188,703 = 377,406
3 × 125,802 = 377,406
6 × 62,901 = 377,406
9 × 41,934 = 377,406
18 × 20,967 = 377,406
27 × 13,978 = 377,406
29 × 13,014 = 377,406
54 × 6,989 = 377,406
58 × 6,507 = 377,406
87 × 4,338 = 377,406
174 × 2,169 = 377,406
241 × 1,566 = 377,406
261 × 1,446 = 377,406
482 × 783 = 377,406
522 × 723 = 377,406
16 unique multiplications The final answer:
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