find the HCF of 217 and 686 by long division method
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4
Answer:
ғɪɴᴅ ᴛʜᴇ ᴘʀɪᴍᴇ ғᴀᴄᴛᴏʀɪᴢᴀᴛɪᴏɴ ᴏғ 217. 217 = 7 × 31.
ғɪɴᴅ ᴛʜᴇ ᴘʀɪᴍᴇ ғᴀᴄᴛᴏʀɪᴢᴀᴛɪᴏɴ ᴏғ 686. 686 = 2 × 7 × 7 × 7
ᴛᴏ ғɪɴᴅ ᴛʜᴇ ɢᴄғ, ᴍᴜʟᴛɪᴘʟʏ ᴀʟʟ ᴛʜᴇ ᴘʀɪᴍᴇ ғᴀᴄᴛᴏʀs ᴄᴏᴍᴍᴏɴ ᴛᴏ ʙᴏᴛʜ ɴᴜᴍʙᴇʀs: ᴛʜᴇʀᴇғᴏʀᴇ, ɢᴄғ = 7.
Answered by
1
Answer:
7
Step-by-step-explaintion
217=7×31
686=2×7×7×7
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