7 x 30 = 210
217 = 7x31 and both of those are primes for that is its prime factorization! Dr. Chuck
i have a Winchester model-70 featherweight 270 w/redfield monoscope3-7x31 serial 359904 w/shoulder strap. what is this worth ??
200-450 USD Go to proofhouse.com to see serial number list.
Hi! You can easily check. You can go onto google and type in (e.g. 4 * 3 instead of the x) and you'd get your answer.You could also use your computer, going on start, all programs, accessories, where you'd see your calculator, which you could then enter your numbers.But anyway, I'll tell you. 7x31 = 217 which is £2.71.SourcesAm a known mathmatician in my local area.
7x1=7, 7x2=14, 7x3=21, 7x4=28,7x5=35, 7x6=42, 7x7=49, 7x8=56,7x9=63, 7x10=70, 7x11=77, 7x12=84,7x13=91, 7x14=91, 7x15=105, 7x16=112,7x17=119, 7x18=126, 7x19=133, 7x20=140,7x21=147, 7x22=154, 7x23=161, 7x24=168,7x25=175, 7x26=182, 7x27=189, 7x28=196,7x29=203, 7x30=210, 7x31=217, 7x32=224,7x33=231, 7x34=238, 7x35=245, 7x36=252,7x37=259, 7x38=266, 7x39=273, 7x40=280,7x41=287, 7x42=294, 7x43=301, 7x44=308,7x45=315, 7x46=322, 7x47=329, 7x48=336,7x49=343, 7x50=350, 7x51=357, 7x52=364,7x53=371, 7x54=378, 7x55=385, 7x56=392,7x57=399, 7x58=406, 7x59=413, 7x60=420,7x61=427, 7x62=434, 7x63=441, 7x64=448,7x65=455, 7x66=462, 7x67=469, 7x68=476,7x69=483, 7x70=490, 7x71=497